I hate to get kitchen burns. I saw these at Amazon and bought some. They are great and very affordable. They come in packages of three. No instructions but I figured out that cutting the third one in half covered the two oven rack edges using one long and one half. I'm buying another package for my toaster oven. I'm always getting burned on that rack.
BESEGO Oven Rack Shields, Heat Resistant Silicone Oven Rack Cover Prevent Hand & Arm against Burns, Scars & Injuries - BPA Free & FDA Approved - 14 Inches Long (3Pcs Black)
They have been on my oven for a few weeks and so far work great. They twist on and twist off easy for self clean cycle. Don't forget to take them off for that. LOL